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Use matrix method to solve the system of equations: (a) x + y + z = 6, x
Use matrix method to solve the system of equations: (a) x + y + z = 6, x − y + z = 2,2x + y − z =1 (b) 2x + 4y + 5z =18, 2x − y +8z =13, 5x − 2y + 7z = 20 (c) 2x − y + 3z = 9, x + 3y − z = 4,3x + 2y + z =10
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given answer for ,try b and c using similar method.
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